Home / 3,678.82-5,511.85-3,161.23

Finding the Fourth Proportional to 3,678.82, 5,511.85 and 3,161.23

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Solution

The fourth proportional to 3,678.82, 5,511.85 and 3,161.23 is: 4,736.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.82 : 5,511.85 = 3,161.23 : x
  2. Step 2: Convert to fraction form
    3,678.82/5,511.85 = 3,161.23/x
  3. Step 3: Cross multiply
    3,678.82x = 5,511.85 × 3,161.23
  4. Step 4: Simplify right side
    3,678.82x = 17,424,203.89
  5. Step 5: Solve for x
    x = 17,424,203.89/3,678.82
  6. Step 6: Final answer
    x = 4,736.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.